Researchers can comply with RCs’ mandate following two paths: theGold Open Accesspath and the Green Open Accessoption. Gold Open Access involves a fee that authors or their funders must pay to publishers to make their papers open access immediately after publication. Green Open Access means that authors can post their publications in an institutional repository, such as Surrey Research Insight Open Access, and there is no fee involved. To follow this path, always keep your final, peer-reviewed, accepted version and upload it via Surrey Research Insight Publications Database. Most publishers allow authors to post the author’s version in an institutional repository rather than the typeset and formated version.